PLZ HELP Given the side lengths, determine whether the triangle is acute, right, obtuse, or not a triangle.
15,17,21
Not a triangle
A cute
Right
Obtuse

3,9,10
Not a triangle
Acute
Right
Obtuse

It is an acute scalene triangle

Step-by-step explanation:

All angles are acute, making it an acute triangle

scalene because all sides are different lengths

93.8

step-by-step explanation:

lets say, first number = x

second number = 3x+7

total = 49

(x)+(3x+7)= 49

4x+7 = 49

4x = 42

x = 42/4

x= 10.5

x= 10.5

3x+7 = 3(10.5)+7 = 93.8

hope this

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50